JE Pistons 207513 JE Pistons; 23deg Dome; Oil Rail Support is Included; Set of 8 Pistons; Recommended RingSet: J100F8-4185-5
JE Pistons - Domestic: For over 60 years, JE Pistons has been the industry leader in forged racing pistons for Chevy, Ford, Mopar and Buick engines.
Features:
- Application Specific Forgings for an Optimized, Uniform Crown Thickness
- Contact Reduction Groove to Minimize Frictional Drag
- Accumulator Groove for Increased Top Ring Stability and Sealing
- CNC-Machined Side Relief with Lower Support Band for Additional Skirt Strength
- Honed Pin Bores, Double Pressure Fed Pin Oilers and Wire Locks Included
Specifications:
- Block Height: 9
- Comp Ratio @ 64cc: 14.8:1
- Bore: 4.185
- CID: 440
- Comp Height: 1
- Comp Ratio @ 58cc: 16.2:1
- Rod: 6
- Gram Weight: 448
- Stroke: 4
- Comp Ratio @ 76cc: 12.6:1
- Dome Volume: 8
- Oversize: 0.06
Fitments:
- Chevrolet 400 Small Block (1970-1980)